M4 x 20 Cylinder Head Screws with Hexagon Socket DIN 912/KL. 12.9 Black Blank Set of 25 : Amazon.de: DIY & Tools
M3 M4 M5 M6 M8 304 A2 Stainless Steel Black Grade 12.9 Steel DIN912 Hex Socket Screws M5.55 mm Pack of 20 : Amazon.de: DIY & Tools
Cylindrical screws M4 - DIN 912 - A2 stainless steel - hex socket - cylinder screws - lengths from 6 mm to 25 mm - V2A - cylinder head screws : Amazon.de: DIY & Tools
2000pcs) DIN 912 M4X16 Hexagon Socket Head Cap Screws A2 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP091224-16: Amazon.com: Industrial & Scientific